Welsh Americans: A History of Assimilation in the Coalfields

Review of: Welsh Americans: A History of Assimilation in the Coalfields, by Ronald L. Lewis

The Welsh in Iowa

Review of: "The Welsh in Iowa" by Cherilyn A. Walley

Homelessness: Residual, Institutional and Communal Solutions

Drawing upon demographic data and ethnographic interviews conducted by the authors, the article addresses the question, Who are the homeless? It identifies five kinds of homeless people and the sources of the homeless populations in the social structure. It then addresses residual and institutional policy solutions and draws on the efforts of the homeless themselves to advance a collective solution to their problems

Artistic vision

Ron Boozer\u27s sketches adorn Shi\u27s new boo

Models for UT Inspection of Bolthole Cracks in Layered Structures

Due to the geometrical complexities of bolted, layered airframe structures, the application of Model Assisted Probability of Detection, or MAPOD, is an important tool for helping to assess the ultrasonic inspectability of those components. Of particular importance is the need to inspect for cracks on or near boltholes in those structures. This presentation describes the development and testing of analytical computer models of and their application to bolthole crack inspection. The modeling approach includes approximate, paraxial, bulk-wave models as well as more rigorous, analytical models that include both bulk and surface/plate modes. The simpler models have the flexibility and computational efficiency to handle complex geometries and structures. The more exact, rigorous models apply to simpler, canonical geometries for use in benchmarking and assessing the accuracy of the paraxial models. Previous model results for single layers will be reviewed and application of the models to multiple layers will be highlighted. Extensions of the models to more complex geometries and materials, computational challenges to future model development, and applications of the models to MAPOD, and will also be addressed

Teacher Retention in American Schools in the East Asia Region: Salary and Leadership Are Key

The purpose of this study was (a) to track teacher turnover in the East Asian Region Consortium of Schools (EARCOS) and (b) to create a model to explain teacher turnover. We received responses from 32 school heads and 744 teachers in EARCOS schools. The average turnover rate was 32% from 2009 to 2010. The most important correlates of turnover were satisfaction with salary and the perception of a supportive principal. Teachers’ age was also a significant predictor of turnover. Characteristics that defined teachers’ perceptions of supportive leadership were consistent with definitions of transformational and distributed leadership

A longitudinal study of financial difficulties and mental health in a national sample of British undergraduate students

Previous research has shown a relationship between financial difficulties and poor mental health in students, but most research is cross-sectional. To examine longitudinal relationships over time between financial variables and mental health in students. A national sample of 454 first year British undergraduate students completed measures of mental health and financial variables at up to four time points across a year. Cross-sectional relationships were found between poorer mental health and female gender, having a disability and non-white ethnicity. Greater financial difficulties predicted greater depression and stress cross-sectionally, and also predicted poorer anxiety, global mental health and alcohol dependence over time. Depression worsened over time for those who had considered abandoning studies or not coming to university for financial reasons, and there were effects for how students viewed their student loan. Anxiety and alcohol dependence also predicted worsening financial situation suggesting a bi-directional relationship. Financial difficulties appear to lead to poor mental health in students with the possibility of a vicious cycle occurring

Dispersion Compensation in Acoustic Emission Pipeline Leak Location

The general practice of acoustic leak location relies on two different physical phenomena for determining source location: 1) reduction in signal amplitude with increasing distance from the source (attenuation-based methods), and 2) increase in signal transit time with increasing distance from the source (time-of-flight-based methods). The work discussed here describes efforts at ISU directed at gaining first-principle understanding of the underlying physical phenomena of multi-mode dispersion in fluid filled pipes and to developing time-of-flight source location data processing for such dispersive systems. Results are presented for work detailing the characteristics of pipe propagation, as well as the effect of those characteristics on cross-correlation analysis. Theoretical and experimental results are also shown for two approaches which potentially overcome the limitations of cross-correlation techniques

Longitudinal study of financial difficulties and mental health in a national sample of British undergraduate students

Background: Previous research has shown a relationship between financial difficulties and poor mental health in students, but most research is cross-sectional.Objectives: To examine longitudinal relationships over time between financial variables and mental health in students.Methods: A national sample of 454 first year British undergraduate students completed measures of mental health and financial variables at up to four time points across a year.Results: Cross-sectional relationships were found between poorer mental health and female gender, having a disability and non-white ethnicity. Greater financial difficulties predicted greater depression and stress cross-sectionally, and also predicted poorer anxiety, global mental health and alcohol dependence over time. Depression worsened over time for those who had considered abandoning studies or not coming to university for financial reasons, and there were effects for how students viewed their student loan. Anxiety and alcohol dependence also predicted worsening financial situation suggesting a bi-directional relationship.Conclusions: Financial difficulties appear to lead to poor mental health in students with the possibility of a vicious cycle occurring